env.go 1.4 KB

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  1. // Copyright 2015 The go-ethereum Authors
  2. // This file is part of the go-ethereum library.
  3. //
  4. // The go-ethereum library is free software: you can redistribute it and/or modify
  5. // it under the terms of the GNU Lesser General Public License as published by
  6. // the Free Software Foundation, either version 3 of the License, or
  7. // (at your option) any later version.
  8. //
  9. // The go-ethereum library is distributed in the hope that it will be useful,
  10. // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12. // GNU Lesser General Public License for more details.
  13. //
  14. // You should have received a copy of the GNU Lesser General Public License
  15. // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
  16. package runtime
  17. import (
  18. "github.com/ethereum/go-ethereum/core"
  19. "github.com/ethereum/go-ethereum/core/vm"
  20. )
  21. func NewEnv(cfg *Config) *vm.EVM {
  22. txContext := vm.TxContext{
  23. Origin: cfg.Origin,
  24. GasPrice: cfg.GasPrice,
  25. }
  26. blockContext := vm.BlockContext{
  27. CanTransfer: core.CanTransfer,
  28. Transfer: core.Transfer,
  29. GetHash: cfg.GetHashFn,
  30. Coinbase: cfg.Coinbase,
  31. BlockNumber: cfg.BlockNumber,
  32. Time: cfg.Time,
  33. Difficulty: cfg.Difficulty,
  34. GasLimit: cfg.GasLimit,
  35. }
  36. return vm.NewEVM(blockContext, txContext, cfg.State, cfg.State, cfg.ChainConfig, cfg.EVMConfig)
  37. }